NDB Fraud: Key Questions Unanswered as Loss Estimate Jumps 33-Fold in Four Days

Sri Lanka’s largest internal banking fraud disclosure in years has left investors and depositors with as many questions as answers, EconomyNext said in an explainer published Monday on the National Development Bank case.

NDB initially disclosed an internal fraud loss of about Rs. 390 million on April 2. Within four days, the figure was revised upward to Rs. 13.2 billion — a more than 33-fold increase in 96 hours. Trading in NDB shares has been halted, the Central Bank has suspended dividend payments and frozen non-essential spending and branch expansion, and arrests have been made.

The Central Bank of Sri Lanka has stressed that customer deposits are unaffected and that NDB’s regulatory capital adequacy ratios remain above minimum thresholds. The bank says the fraud involved staff members colluding with unnamed third parties.

The unanswered questions are the substance of the explainer. Why did the loss estimate jump so sharply in such a short period? Which operational area inside the bank was compromised — corporate lending, treasury, trade finance, or transaction processing? Who are the third parties involved? And how did the activity bypass NDB’s automated risk and reconciliation systems for as long as it apparently did?

There is also a timing question. The Criminal Investigation Department is reported to have inquired into elements of the case as early as January 2026. Why was a public disclosure deferred until April? Did the CBSL know? And did NDB’s board?

“Investors are waiting to see how Tuesday’s deadline to open the Strait of Hormuz goes to react,” Raynal Wickremeratne of Softlogic Stockbrokers told EconomyNext, underscoring how the fraud has landed in the middle of a separate macro shock.

Sri Lanka’s banking sector is already entering a CBSL-led consolidation push, with mandatory mergers possible if voluntary deals fail. The NDB case is likely to accelerate that conversation. NDB shares have since resumed trading with a 15% fall. Fitch has since downgraded NDB to A-(lka), the first formal credit action since the fraud was disclosed.